/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-13.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 02:20:32,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 02:20:32,750 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 02:20:32,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 02:20:32,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 02:20:32,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 02:20:32,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 02:20:32,778 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 02:20:32,778 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 02:20:32,781 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 02:20:32,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 02:20:32,782 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 02:20:32,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 02:20:32,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 02:20:32,783 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 02:20:32,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 02:20:32,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 02:20:32,784 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 02:20:32,784 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 02:20:32,784 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 02:20:32,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 02:20:32,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 02:20:32,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 02:20:32,785 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 02:20:32,786 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 02:20:32,786 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 02:20:32,786 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 02:20:32,786 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 02:20:32,786 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 02:20:32,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 02:20:32,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 02:20:32,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 02:20:32,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:20:32,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 02:20:32,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 02:20:32,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 02:20:32,788 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 02:20:32,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 02:20:32,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 02:20:32,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 02:20:32,789 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 02:20:32,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 02:20:32,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 02:20:32,789 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 02:20:32,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 02:20:33,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 02:20:33,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 02:20:33,008 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 02:20:33,008 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 02:20:33,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-13.i [2023-12-21 02:20:34,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 02:20:34,200 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 02:20:34,201 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-13.i [2023-12-21 02:20:34,208 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05ef52cc5/bb31d65613f94f44b52fbf465e4acf8e/FLAG323f8f3e5 [2023-12-21 02:20:34,219 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05ef52cc5/bb31d65613f94f44b52fbf465e4acf8e [2023-12-21 02:20:34,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 02:20:34,224 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 02:20:34,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 02:20:34,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 02:20:34,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 02:20:34,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7435e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34, skipping insertion in model container [2023-12-21 02:20:34,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,255 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 02:20:34,376 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-13.i[916,929] [2023-12-21 02:20:34,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:20:34,444 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 02:20:34,454 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-13.i[916,929] [2023-12-21 02:20:34,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:20:34,508 INFO L206 MainTranslator]: Completed translation [2023-12-21 02:20:34,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34 WrapperNode [2023-12-21 02:20:34,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 02:20:34,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 02:20:34,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 02:20:34,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 02:20:34,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,553 INFO L138 Inliner]: procedures = 29, calls = 142, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 467 [2023-12-21 02:20:34,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 02:20:34,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 02:20:34,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 02:20:34,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 02:20:34,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,606 INFO L175 MemorySlicer]: Split 115 memory accesses to 2 slices as follows [2, 113]. 98 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 13]. The 15 writes are split as follows [0, 15]. [2023-12-21 02:20:34,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,607 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 02:20:34,637 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 02:20:34,637 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 02:20:34,637 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 02:20:34,638 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (1/1) ... [2023-12-21 02:20:34,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:20:34,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:34,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 02:20:34,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 02:20:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 02:20:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 02:20:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 02:20:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-21 02:20:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-21 02:20:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-21 02:20:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-21 02:20:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 02:20:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 02:20:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-21 02:20:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-21 02:20:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 02:20:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 02:20:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 02:20:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 02:20:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 02:20:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 02:20:34,844 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 02:20:34,846 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 02:20:35,189 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 02:20:35,211 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 02:20:35,212 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 02:20:35,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:20:35 BoogieIcfgContainer [2023-12-21 02:20:35,212 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 02:20:35,214 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 02:20:35,214 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 02:20:35,218 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 02:20:35,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:20:34" (1/3) ... [2023-12-21 02:20:35,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c75ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:20:35, skipping insertion in model container [2023-12-21 02:20:35,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:20:34" (2/3) ... [2023-12-21 02:20:35,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c75ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:20:35, skipping insertion in model container [2023-12-21 02:20:35,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:20:35" (3/3) ... [2023-12-21 02:20:35,219 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-13.i [2023-12-21 02:20:35,233 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 02:20:35,233 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 02:20:35,273 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 02:20:35,279 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@79d29e55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 02:20:35,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 02:20:35,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 87 states have (on average 1.4827586206896552) internal successors, (129), 88 states have internal predecessors, (129), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-21 02:20:35,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-21 02:20:35,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:35,296 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:35,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:35,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:35,302 INFO L85 PathProgramCache]: Analyzing trace with hash -342532188, now seen corresponding path program 1 times [2023-12-21 02:20:35,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:35,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786960446] [2023-12-21 02:20:35,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:35,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:20:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:20:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:20:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:20:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:20:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:20:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:20:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:20:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:20:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:20:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:20:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 02:20:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:20:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 02:20:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:20:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:35,603 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:35,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:35,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786960446] [2023-12-21 02:20:35,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786960446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:35,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:35,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 02:20:35,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948844674] [2023-12-21 02:20:35,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:35,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 02:20:35,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:35,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 02:20:35,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:20:35,636 INFO L87 Difference]: Start difference. First operand has 105 states, 87 states have (on average 1.4827586206896552) internal successors, (129), 88 states have internal predecessors, (129), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 02:20:35,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:35,683 INFO L93 Difference]: Finished difference Result 207 states and 331 transitions. [2023-12-21 02:20:35,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 02:20:35,685 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 126 [2023-12-21 02:20:35,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:35,692 INFO L225 Difference]: With dead ends: 207 [2023-12-21 02:20:35,692 INFO L226 Difference]: Without dead ends: 103 [2023-12-21 02:20:35,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:20:35,698 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:35,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:20:35,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-21 02:20:35,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-12-21 02:20:35,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.441860465116279) internal successors, (124), 86 states have internal predecessors, (124), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-21 02:20:35,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 154 transitions. [2023-12-21 02:20:35,741 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 154 transitions. Word has length 126 [2023-12-21 02:20:35,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:35,741 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 154 transitions. [2023-12-21 02:20:35,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 02:20:35,742 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 154 transitions. [2023-12-21 02:20:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-21 02:20:35,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:35,744 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:35,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 02:20:35,745 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:35,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:35,746 INFO L85 PathProgramCache]: Analyzing trace with hash 219295054, now seen corresponding path program 1 times [2023-12-21 02:20:35,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:35,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127646948] [2023-12-21 02:20:35,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:35,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:20:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:20:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:20:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:20:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:20:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:20:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:20:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:20:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:20:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:20:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:20:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 02:20:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:20:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 02:20:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:20:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:36,127 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:36,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:36,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127646948] [2023-12-21 02:20:36,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127646948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:36,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:36,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:20:36,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987661087] [2023-12-21 02:20:36,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:36,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:20:36,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:36,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:20:36,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:20:36,130 INFO L87 Difference]: Start difference. First operand 103 states and 154 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:36,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:36,203 INFO L93 Difference]: Finished difference Result 227 states and 341 transitions. [2023-12-21 02:20:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:20:36,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 126 [2023-12-21 02:20:36,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:36,208 INFO L225 Difference]: With dead ends: 227 [2023-12-21 02:20:36,208 INFO L226 Difference]: Without dead ends: 125 [2023-12-21 02:20:36,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:20:36,211 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 41 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:36,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 483 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:20:36,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-12-21 02:20:36,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 105. [2023-12-21 02:20:36,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 88 states have (on average 1.4318181818181819) internal successors, (126), 88 states have internal predecessors, (126), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-21 02:20:36,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 156 transitions. [2023-12-21 02:20:36,231 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 156 transitions. Word has length 126 [2023-12-21 02:20:36,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:36,234 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 156 transitions. [2023-12-21 02:20:36,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:36,234 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 156 transitions. [2023-12-21 02:20:36,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 02:20:36,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:36,239 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:36,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 02:20:36,240 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:36,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:36,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1326947827, now seen corresponding path program 1 times [2023-12-21 02:20:36,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:36,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584170044] [2023-12-21 02:20:36,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:36,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:20:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:20:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:20:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:20:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:20:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:20:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:20:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:20:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:20:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:20:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:20:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 02:20:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:20:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 02:20:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:20:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:37,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:37,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584170044] [2023-12-21 02:20:37,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584170044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:37,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:37,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:20:37,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235481045] [2023-12-21 02:20:37,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:37,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:20:37,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:37,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:20:37,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:20:37,200 INFO L87 Difference]: Start difference. First operand 105 states and 156 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:37,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:37,393 INFO L93 Difference]: Finished difference Result 313 states and 466 transitions. [2023-12-21 02:20:37,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 02:20:37,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2023-12-21 02:20:37,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:37,396 INFO L225 Difference]: With dead ends: 313 [2023-12-21 02:20:37,397 INFO L226 Difference]: Without dead ends: 209 [2023-12-21 02:20:37,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:20:37,399 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 100 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:37,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 251 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:20:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-21 02:20:37,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 205. [2023-12-21 02:20:37,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 172 states have (on average 1.430232558139535) internal successors, (246), 172 states have internal predecessors, (246), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:20:37,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 306 transitions. [2023-12-21 02:20:37,429 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 306 transitions. Word has length 128 [2023-12-21 02:20:37,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:37,429 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 306 transitions. [2023-12-21 02:20:37,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:37,430 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 306 transitions. [2023-12-21 02:20:37,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 02:20:37,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:37,431 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:37,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 02:20:37,432 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:37,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:37,432 INFO L85 PathProgramCache]: Analyzing trace with hash -361995915, now seen corresponding path program 1 times [2023-12-21 02:20:37,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:37,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171914223] [2023-12-21 02:20:37,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:37,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:37,465 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:37,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859261874] [2023-12-21 02:20:37,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:37,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:37,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:37,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:37,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 02:20:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:37,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 02:20:37,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:37,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-12-21 02:20:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:37,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:37,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:37,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171914223] [2023-12-21 02:20:37,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:37,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859261874] [2023-12-21 02:20:37,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859261874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:37,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:37,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 02:20:37,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068992197] [2023-12-21 02:20:37,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:37,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 02:20:37,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:37,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 02:20:37,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 02:20:37,711 INFO L87 Difference]: Start difference. First operand 205 states and 306 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:37,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:37,729 INFO L93 Difference]: Finished difference Result 449 states and 673 transitions. [2023-12-21 02:20:37,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 02:20:37,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2023-12-21 02:20:37,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:37,732 INFO L225 Difference]: With dead ends: 449 [2023-12-21 02:20:37,732 INFO L226 Difference]: Without dead ends: 245 [2023-12-21 02:20:37,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 02:20:37,736 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 35 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:37,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 299 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:20:37,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-12-21 02:20:37,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 205. [2023-12-21 02:20:37,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 172 states have (on average 1.4186046511627908) internal successors, (244), 172 states have internal predecessors, (244), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:20:37,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 304 transitions. [2023-12-21 02:20:37,749 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 304 transitions. Word has length 128 [2023-12-21 02:20:37,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:37,749 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 304 transitions. [2023-12-21 02:20:37,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:37,750 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 304 transitions. [2023-12-21 02:20:37,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 02:20:37,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:37,751 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:37,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:37,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:37,958 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:37,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:37,959 INFO L85 PathProgramCache]: Analyzing trace with hash 339068663, now seen corresponding path program 1 times [2023-12-21 02:20:37,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:37,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514244931] [2023-12-21 02:20:37,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:37,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:37,985 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:37,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1525296351] [2023-12-21 02:20:37,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:37,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:37,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:37,987 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:37,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 02:20:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:38,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-21 02:20:38,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:38,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:38,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27 [2023-12-21 02:20:38,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:38,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 26 [2023-12-21 02:20:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:38,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:38,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:38,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514244931] [2023-12-21 02:20:38,365 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:38,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525296351] [2023-12-21 02:20:38,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525296351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:38,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:38,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:20:38,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474682726] [2023-12-21 02:20:38,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:38,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:20:38,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:38,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:20:38,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:20:38,367 INFO L87 Difference]: Start difference. First operand 205 states and 304 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:38,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:38,656 INFO L93 Difference]: Finished difference Result 534 states and 789 transitions. [2023-12-21 02:20:38,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:20:38,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2023-12-21 02:20:38,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:38,660 INFO L225 Difference]: With dead ends: 534 [2023-12-21 02:20:38,660 INFO L226 Difference]: Without dead ends: 330 [2023-12-21 02:20:38,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:20:38,661 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 247 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:38,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 301 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:20:38,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-12-21 02:20:38,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 210. [2023-12-21 02:20:38,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 177 states have (on average 1.4124293785310735) internal successors, (250), 177 states have internal predecessors, (250), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:20:38,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 310 transitions. [2023-12-21 02:20:38,675 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 310 transitions. Word has length 128 [2023-12-21 02:20:38,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:38,675 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 310 transitions. [2023-12-21 02:20:38,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:38,676 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 310 transitions. [2023-12-21 02:20:38,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 02:20:38,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:38,678 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:38,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:38,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:38,884 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:38,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:38,885 INFO L85 PathProgramCache]: Analyzing trace with hash -681999691, now seen corresponding path program 1 times [2023-12-21 02:20:38,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:38,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280166200] [2023-12-21 02:20:38,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:38,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:38,921 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:38,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1635698537] [2023-12-21 02:20:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:38,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:38,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:38,923 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:38,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 02:20:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:39,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 02:20:39,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:39,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-21 02:20:39,118 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:39,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:39,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:39,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280166200] [2023-12-21 02:20:39,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:39,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635698537] [2023-12-21 02:20:39,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635698537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:39,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:39,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:20:39,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58825788] [2023-12-21 02:20:39,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:39,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:20:39,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:39,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:20:39,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:20:39,125 INFO L87 Difference]: Start difference. First operand 210 states and 310 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:39,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:39,320 INFO L93 Difference]: Finished difference Result 469 states and 694 transitions. [2023-12-21 02:20:39,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:20:39,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2023-12-21 02:20:39,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:39,322 INFO L225 Difference]: With dead ends: 469 [2023-12-21 02:20:39,322 INFO L226 Difference]: Without dead ends: 260 [2023-12-21 02:20:39,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:20:39,323 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 111 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:39,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 437 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:20:39,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-21 02:20:39,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 212. [2023-12-21 02:20:39,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 179 states have (on average 1.4134078212290502) internal successors, (253), 179 states have internal predecessors, (253), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 02:20:39,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 313 transitions. [2023-12-21 02:20:39,331 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 313 transitions. Word has length 128 [2023-12-21 02:20:39,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:39,331 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 313 transitions. [2023-12-21 02:20:39,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:39,331 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 313 transitions. [2023-12-21 02:20:39,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-21 02:20:39,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:39,332 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:39,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:39,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:39,539 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:39,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:39,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1138983093, now seen corresponding path program 1 times [2023-12-21 02:20:39,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:39,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182579513] [2023-12-21 02:20:39,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:39,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:39,566 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:39,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [305559336] [2023-12-21 02:20:39,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:39,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:39,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:39,582 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:39,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 02:20:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:39,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 02:20:39,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:39,751 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:39,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-12-21 02:20:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:39,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:39,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:39,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182579513] [2023-12-21 02:20:39,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:39,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305559336] [2023-12-21 02:20:39,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305559336] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:39,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:39,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:20:39,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558276658] [2023-12-21 02:20:39,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:39,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:20:39,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:39,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:20:39,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:20:39,795 INFO L87 Difference]: Start difference. First operand 212 states and 313 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:40,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:40,222 INFO L93 Difference]: Finished difference Result 738 states and 1084 transitions. [2023-12-21 02:20:40,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:20:40,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2023-12-21 02:20:40,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:40,224 INFO L225 Difference]: With dead ends: 738 [2023-12-21 02:20:40,224 INFO L226 Difference]: Without dead ends: 527 [2023-12-21 02:20:40,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:20:40,225 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 316 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:40,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 464 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:20:40,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-12-21 02:20:40,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 285. [2023-12-21 02:20:40,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 246 states have (on average 1.410569105691057) internal successors, (347), 247 states have internal predecessors, (347), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-21 02:20:40,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 417 transitions. [2023-12-21 02:20:40,242 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 417 transitions. Word has length 129 [2023-12-21 02:20:40,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:40,242 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 417 transitions. [2023-12-21 02:20:40,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:40,242 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 417 transitions. [2023-12-21 02:20:40,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-21 02:20:40,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:40,243 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:40,252 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-21 02:20:40,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:40,450 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:40,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:40,450 INFO L85 PathProgramCache]: Analyzing trace with hash 745956083, now seen corresponding path program 1 times [2023-12-21 02:20:40,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:40,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606806614] [2023-12-21 02:20:40,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:40,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:40,473 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:40,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99770749] [2023-12-21 02:20:40,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:40,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:40,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:40,475 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:40,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 02:20:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:40,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-21 02:20:40,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:40,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:40,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2023-12-21 02:20:40,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-21 02:20:40,696 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:40,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:40,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:40,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606806614] [2023-12-21 02:20:40,697 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:40,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99770749] [2023-12-21 02:20:40,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99770749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:40,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:40,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:20:40,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144424226] [2023-12-21 02:20:40,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:40,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:20:40,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:40,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:20:40,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:20:40,698 INFO L87 Difference]: Start difference. First operand 285 states and 417 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:41,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:41,007 INFO L93 Difference]: Finished difference Result 688 states and 1007 transitions. [2023-12-21 02:20:41,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 02:20:41,007 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2023-12-21 02:20:41,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:41,009 INFO L225 Difference]: With dead ends: 688 [2023-12-21 02:20:41,009 INFO L226 Difference]: Without dead ends: 404 [2023-12-21 02:20:41,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:20:41,011 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 285 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:41,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 726 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:20:41,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2023-12-21 02:20:41,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 295. [2023-12-21 02:20:41,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 255 states have (on average 1.396078431372549) internal successors, (356), 256 states have internal predecessors, (356), 35 states have call successors, (35), 4 states have call predecessors, (35), 4 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-21 02:20:41,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 426 transitions. [2023-12-21 02:20:41,021 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 426 transitions. Word has length 129 [2023-12-21 02:20:41,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:41,022 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 426 transitions. [2023-12-21 02:20:41,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:41,022 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 426 transitions. [2023-12-21 02:20:41,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-21 02:20:41,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:41,023 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:41,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:41,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:41,235 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:41,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:41,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1426014453, now seen corresponding path program 1 times [2023-12-21 02:20:41,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:41,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678488989] [2023-12-21 02:20:41,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:41,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:41,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:41,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841128108] [2023-12-21 02:20:41,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:41,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:41,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:41,254 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:41,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 02:20:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:41,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 02:20:41,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:41,513 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:41,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2023-12-21 02:20:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:41,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:41,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:41,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678488989] [2023-12-21 02:20:41,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:41,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841128108] [2023-12-21 02:20:41,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841128108] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:41,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:41,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:20:41,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705803842] [2023-12-21 02:20:41,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:41,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:20:41,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:41,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:20:41,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:20:41,581 INFO L87 Difference]: Start difference. First operand 295 states and 426 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:41,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:41,914 INFO L93 Difference]: Finished difference Result 643 states and 929 transitions. [2023-12-21 02:20:41,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:20:41,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2023-12-21 02:20:41,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:41,917 INFO L225 Difference]: With dead ends: 643 [2023-12-21 02:20:41,917 INFO L226 Difference]: Without dead ends: 349 [2023-12-21 02:20:41,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:20:41,918 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 252 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:41,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 348 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:20:41,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-12-21 02:20:41,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 299. [2023-12-21 02:20:41,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 258 states have (on average 1.3875968992248062) internal successors, (358), 259 states have internal predecessors, (358), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-21 02:20:41,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 428 transitions. [2023-12-21 02:20:41,932 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 428 transitions. Word has length 129 [2023-12-21 02:20:41,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:41,932 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 428 transitions. [2023-12-21 02:20:41,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:41,932 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 428 transitions. [2023-12-21 02:20:41,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-21 02:20:41,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:41,933 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:41,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:42,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:42,140 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:42,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:42,141 INFO L85 PathProgramCache]: Analyzing trace with hash -942987659, now seen corresponding path program 1 times [2023-12-21 02:20:42,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:42,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324883540] [2023-12-21 02:20:42,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:42,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:42,162 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:42,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513976357] [2023-12-21 02:20:42,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:42,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:42,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:42,163 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:42,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 02:20:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:42,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 02:20:42,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:42,455 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:42,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2023-12-21 02:20:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:42,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:42,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:42,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324883540] [2023-12-21 02:20:42,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:42,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513976357] [2023-12-21 02:20:42,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513976357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:42,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:42,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:20:42,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403384605] [2023-12-21 02:20:42,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:42,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:20:42,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:42,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:20:42,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:20:42,523 INFO L87 Difference]: Start difference. First operand 299 states and 428 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:42,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:42,879 INFO L93 Difference]: Finished difference Result 706 states and 1012 transitions. [2023-12-21 02:20:42,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:20:42,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2023-12-21 02:20:42,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:42,881 INFO L225 Difference]: With dead ends: 706 [2023-12-21 02:20:42,881 INFO L226 Difference]: Without dead ends: 408 [2023-12-21 02:20:42,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:20:42,882 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 217 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:42,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 359 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:20:42,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2023-12-21 02:20:42,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 353. [2023-12-21 02:20:42,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 309 states have (on average 1.3883495145631068) internal successors, (429), 311 states have internal predecessors, (429), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-21 02:20:42,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 503 transitions. [2023-12-21 02:20:42,899 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 503 transitions. Word has length 129 [2023-12-21 02:20:42,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:42,899 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 503 transitions. [2023-12-21 02:20:42,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:42,899 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 503 transitions. [2023-12-21 02:20:42,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-21 02:20:42,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:42,900 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:42,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:43,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:43,108 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:43,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:43,108 INFO L85 PathProgramCache]: Analyzing trace with hash -262929289, now seen corresponding path program 1 times [2023-12-21 02:20:43,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:43,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057057297] [2023-12-21 02:20:43,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:43,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:43,126 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:43,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [355624005] [2023-12-21 02:20:43,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:43,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:43,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:43,128 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:43,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 02:20:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:43,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 02:20:43,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:43,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-21 02:20:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:43,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:43,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:43,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057057297] [2023-12-21 02:20:43,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:43,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355624005] [2023-12-21 02:20:43,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355624005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:43,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:43,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:20:43,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101317754] [2023-12-21 02:20:43,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:43,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:20:43,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:43,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:20:43,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:20:43,331 INFO L87 Difference]: Start difference. First operand 353 states and 503 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:43,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:43,562 INFO L93 Difference]: Finished difference Result 810 states and 1161 transitions. [2023-12-21 02:20:43,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:20:43,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2023-12-21 02:20:43,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:43,565 INFO L225 Difference]: With dead ends: 810 [2023-12-21 02:20:43,565 INFO L226 Difference]: Without dead ends: 458 [2023-12-21 02:20:43,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:20:43,566 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 211 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:43,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 968 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:20:43,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-12-21 02:20:43,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 358. [2023-12-21 02:20:43,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 314 states have (on average 1.3821656050955413) internal successors, (434), 316 states have internal predecessors, (434), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-21 02:20:43,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 508 transitions. [2023-12-21 02:20:43,606 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 508 transitions. Word has length 129 [2023-12-21 02:20:43,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:43,606 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 508 transitions. [2023-12-21 02:20:43,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:43,606 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 508 transitions. [2023-12-21 02:20:43,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-21 02:20:43,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:43,607 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:43,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:43,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-21 02:20:43,815 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:43,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:43,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1218290704, now seen corresponding path program 1 times [2023-12-21 02:20:43,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:43,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610251146] [2023-12-21 02:20:43,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:43,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:20:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:20:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:20:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:20:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:20:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:20:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:20:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:20:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:20:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:20:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:20:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 02:20:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:20:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 02:20:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:20:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,098 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:44,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:44,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610251146] [2023-12-21 02:20:44,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610251146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:44,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:44,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:20:44,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271077400] [2023-12-21 02:20:44,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:44,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:20:44,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:44,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:20:44,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:20:44,100 INFO L87 Difference]: Start difference. First operand 358 states and 508 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:44,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:44,606 INFO L93 Difference]: Finished difference Result 1203 states and 1698 transitions. [2023-12-21 02:20:44,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:20:44,606 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 130 [2023-12-21 02:20:44,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:44,609 INFO L225 Difference]: With dead ends: 1203 [2023-12-21 02:20:44,609 INFO L226 Difference]: Without dead ends: 846 [2023-12-21 02:20:44,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:20:44,611 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 301 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:44,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 820 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:20:44,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2023-12-21 02:20:44,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 840. [2023-12-21 02:20:44,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 729 states have (on average 1.3676268861454046) internal successors, (997), 734 states have internal predecessors, (997), 94 states have call successors, (94), 16 states have call predecessors, (94), 16 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-21 02:20:44,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1185 transitions. [2023-12-21 02:20:44,673 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1185 transitions. Word has length 130 [2023-12-21 02:20:44,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:44,673 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 1185 transitions. [2023-12-21 02:20:44,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1185 transitions. [2023-12-21 02:20:44,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-21 02:20:44,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:44,675 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:44,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 02:20:44,675 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:44,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:44,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1387732850, now seen corresponding path program 1 times [2023-12-21 02:20:44,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:44,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669220596] [2023-12-21 02:20:44,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:44,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:44,704 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:44,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307075781] [2023-12-21 02:20:44,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:44,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:44,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:44,706 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:44,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 02:20:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:44,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 02:20:44,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:44,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-12-21 02:20:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:44,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:44,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:44,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669220596] [2023-12-21 02:20:44,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:44,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307075781] [2023-12-21 02:20:44,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307075781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:44,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:44,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 02:20:44,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106281798] [2023-12-21 02:20:44,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:44,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 02:20:44,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:44,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 02:20:44,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 02:20:44,886 INFO L87 Difference]: Start difference. First operand 840 states and 1185 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:44,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:44,918 INFO L93 Difference]: Finished difference Result 1679 states and 2369 transitions. [2023-12-21 02:20:44,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 02:20:44,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 130 [2023-12-21 02:20:44,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:44,923 INFO L225 Difference]: With dead ends: 1679 [2023-12-21 02:20:44,924 INFO L226 Difference]: Without dead ends: 840 [2023-12-21 02:20:44,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 02:20:44,926 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:44,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 291 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:20:44,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2023-12-21 02:20:44,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 840. [2023-12-21 02:20:44,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 729 states have (on average 1.364883401920439) internal successors, (995), 734 states have internal predecessors, (995), 94 states have call successors, (94), 16 states have call predecessors, (94), 16 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-21 02:20:44,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1183 transitions. [2023-12-21 02:20:44,957 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1183 transitions. Word has length 130 [2023-12-21 02:20:44,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:44,958 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 1183 transitions. [2023-12-21 02:20:44,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:44,958 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1183 transitions. [2023-12-21 02:20:44,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-21 02:20:44,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:44,959 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:44,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:45,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-21 02:20:45,165 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:45,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:45,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1606587568, now seen corresponding path program 1 times [2023-12-21 02:20:45,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:45,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299663838] [2023-12-21 02:20:45,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:45,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:45,187 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:45,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534711522] [2023-12-21 02:20:45,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:45,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:45,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:45,189 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:45,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 02:20:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:45,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-21 02:20:45,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:45,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-21 02:20:45,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:45,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2023-12-21 02:20:45,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:45,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 17 [2023-12-21 02:20:45,500 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-21 02:20:45,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:20:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:45,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:45,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299663838] [2023-12-21 02:20:45,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:45,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534711522] [2023-12-21 02:20:45,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534711522] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:20:45,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:20:45,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 16 [2023-12-21 02:20:45,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381685842] [2023-12-21 02:20:45,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:45,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:20:45,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:45,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:20:45,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:20:45,616 INFO L87 Difference]: Start difference. First operand 840 states and 1183 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:46,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:46,222 INFO L93 Difference]: Finished difference Result 2112 states and 2964 transitions. [2023-12-21 02:20:46,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:20:46,223 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 130 [2023-12-21 02:20:46,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:46,227 INFO L225 Difference]: With dead ends: 2112 [2023-12-21 02:20:46,227 INFO L226 Difference]: Without dead ends: 1273 [2023-12-21 02:20:46,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2023-12-21 02:20:46,231 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 243 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:46,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 1138 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:20:46,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2023-12-21 02:20:46,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 820. [2023-12-21 02:20:46,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 709 states have (on average 1.3610719322990128) internal successors, (965), 714 states have internal predecessors, (965), 94 states have call successors, (94), 16 states have call predecessors, (94), 16 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-21 02:20:46,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1153 transitions. [2023-12-21 02:20:46,285 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1153 transitions. Word has length 130 [2023-12-21 02:20:46,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:46,285 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 1153 transitions. [2023-12-21 02:20:46,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1153 transitions. [2023-12-21 02:20:46,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 02:20:46,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:46,286 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:46,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:46,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-21 02:20:46,492 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:46,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:46,493 INFO L85 PathProgramCache]: Analyzing trace with hash 237463514, now seen corresponding path program 1 times [2023-12-21 02:20:46,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:46,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644066155] [2023-12-21 02:20:46,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:46,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:46,511 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:46,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [358830790] [2023-12-21 02:20:46,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:46,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:46,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:46,513 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:46,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 02:20:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:46,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 02:20:46,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:46,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-12-21 02:20:46,736 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:46,736 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:46,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:46,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644066155] [2023-12-21 02:20:46,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:46,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358830790] [2023-12-21 02:20:46,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358830790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:46,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:46,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:20:46,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851699612] [2023-12-21 02:20:46,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:46,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:20:46,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:46,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:20:46,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:20:46,738 INFO L87 Difference]: Start difference. First operand 820 states and 1153 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:46,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:46,930 INFO L93 Difference]: Finished difference Result 1798 states and 2522 transitions. [2023-12-21 02:20:46,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:20:46,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 131 [2023-12-21 02:20:46,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:46,934 INFO L225 Difference]: With dead ends: 1798 [2023-12-21 02:20:46,934 INFO L226 Difference]: Without dead ends: 979 [2023-12-21 02:20:46,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:20:46,935 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 80 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:46,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 498 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:20:46,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-21 02:20:46,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 820. [2023-12-21 02:20:46,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 709 states have (on average 1.3441466854724964) internal successors, (953), 714 states have internal predecessors, (953), 94 states have call successors, (94), 16 states have call predecessors, (94), 16 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-21 02:20:46,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1141 transitions. [2023-12-21 02:20:46,965 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1141 transitions. Word has length 131 [2023-12-21 02:20:46,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:46,966 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 1141 transitions. [2023-12-21 02:20:46,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:46,966 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1141 transitions. [2023-12-21 02:20:46,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 02:20:46,967 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:46,967 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:46,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:47,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-21 02:20:47,173 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:47,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:47,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1350884388, now seen corresponding path program 1 times [2023-12-21 02:20:47,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:47,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071624201] [2023-12-21 02:20:47,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:47,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:47,194 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:47,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829618418] [2023-12-21 02:20:47,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:47,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:47,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:47,196 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:47,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 02:20:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:47,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 02:20:47,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:47,406 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:47,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2023-12-21 02:20:47,447 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:47,448 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:47,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:47,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071624201] [2023-12-21 02:20:47,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:47,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829618418] [2023-12-21 02:20:47,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829618418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:47,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:47,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:20:47,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801537042] [2023-12-21 02:20:47,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:47,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:20:47,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:47,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:20:47,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:20:47,449 INFO L87 Difference]: Start difference. First operand 820 states and 1141 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:47,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:47,790 INFO L93 Difference]: Finished difference Result 1549 states and 2151 transitions. [2023-12-21 02:20:47,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:20:47,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 131 [2023-12-21 02:20:47,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:47,794 INFO L225 Difference]: With dead ends: 1549 [2023-12-21 02:20:47,794 INFO L226 Difference]: Without dead ends: 730 [2023-12-21 02:20:47,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:20:47,800 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 153 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:47,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 743 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:20:47,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-21 02:20:47,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 572. [2023-12-21 02:20:47,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 487 states have (on average 1.324435318275154) internal successors, (645), 490 states have internal predecessors, (645), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-21 02:20:47,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 789 transitions. [2023-12-21 02:20:47,855 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 789 transitions. Word has length 131 [2023-12-21 02:20:47,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:47,855 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 789 transitions. [2023-12-21 02:20:47,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:47,855 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 789 transitions. [2023-12-21 02:20:47,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-21 02:20:47,856 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:47,856 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:47,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:48,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-21 02:20:48,062 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:48,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:48,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1976210494, now seen corresponding path program 1 times [2023-12-21 02:20:48,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:48,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368753319] [2023-12-21 02:20:48,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:48,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:48,087 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:48,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [535686944] [2023-12-21 02:20:48,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:48,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:48,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:48,095 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:48,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 02:20:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:48,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 02:20:48,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:48,297 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:48,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:48,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:48,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368753319] [2023-12-21 02:20:48,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:48,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535686944] [2023-12-21 02:20:48,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535686944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:48,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:48,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:20:48,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599044369] [2023-12-21 02:20:48,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:48,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:20:48,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:48,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:20:48,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:20:48,300 INFO L87 Difference]: Start difference. First operand 572 states and 789 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:48,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:48,351 INFO L93 Difference]: Finished difference Result 1187 states and 1637 transitions. [2023-12-21 02:20:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:20:48,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2023-12-21 02:20:48,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:48,354 INFO L225 Difference]: With dead ends: 1187 [2023-12-21 02:20:48,354 INFO L226 Difference]: Without dead ends: 620 [2023-12-21 02:20:48,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:20:48,356 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 47 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:48,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 689 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:20:48,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2023-12-21 02:20:48,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 596. [2023-12-21 02:20:48,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 511 states have (on average 1.3091976516634052) internal successors, (669), 514 states have internal predecessors, (669), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-21 02:20:48,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 813 transitions. [2023-12-21 02:20:48,378 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 813 transitions. Word has length 134 [2023-12-21 02:20:48,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:48,380 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 813 transitions. [2023-12-21 02:20:48,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:48,380 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 813 transitions. [2023-12-21 02:20:48,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-21 02:20:48,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:48,382 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:48,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:48,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-21 02:20:48,588 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:48,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:48,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2118341836, now seen corresponding path program 1 times [2023-12-21 02:20:48,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:48,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818921105] [2023-12-21 02:20:48,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:48,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:48,610 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:48,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1472832848] [2023-12-21 02:20:48,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:48,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:48,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:48,612 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:48,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 02:20:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:48,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 02:20:48,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:48,808 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:48,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:48,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:48,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818921105] [2023-12-21 02:20:48,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:48,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472832848] [2023-12-21 02:20:48,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472832848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:48,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:48,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 02:20:48,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844912447] [2023-12-21 02:20:48,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:48,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 02:20:48,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:48,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 02:20:48,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 02:20:48,810 INFO L87 Difference]: Start difference. First operand 596 states and 813 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:48,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:48,841 INFO L93 Difference]: Finished difference Result 1175 states and 1601 transitions. [2023-12-21 02:20:48,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 02:20:48,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2023-12-21 02:20:48,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:48,844 INFO L225 Difference]: With dead ends: 1175 [2023-12-21 02:20:48,844 INFO L226 Difference]: Without dead ends: 584 [2023-12-21 02:20:48,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 02:20:48,845 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 16 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:48,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 263 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:20:48,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-12-21 02:20:48,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2023-12-21 02:20:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 499 states have (on average 1.2925851703406814) internal successors, (645), 502 states have internal predecessors, (645), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-21 02:20:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 789 transitions. [2023-12-21 02:20:48,867 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 789 transitions. Word has length 134 [2023-12-21 02:20:48,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:48,868 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 789 transitions. [2023-12-21 02:20:48,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:48,869 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 789 transitions. [2023-12-21 02:20:48,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 02:20:48,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:48,870 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:48,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:49,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:49,076 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:49,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:49,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1083198055, now seen corresponding path program 1 times [2023-12-21 02:20:49,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:49,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894082528] [2023-12-21 02:20:49,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:49,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:49,095 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:49,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11024494] [2023-12-21 02:20:49,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:49,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:49,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:49,098 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:49,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-21 02:20:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:49,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 02:20:49,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:49,321 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:49,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:49,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:49,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894082528] [2023-12-21 02:20:49,322 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:49,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11024494] [2023-12-21 02:20:49,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11024494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:49,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:49,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:20:49,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348078302] [2023-12-21 02:20:49,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:49,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:20:49,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:49,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:20:49,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:20:49,323 INFO L87 Difference]: Start difference. First operand 584 states and 789 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:49,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:49,478 INFO L93 Difference]: Finished difference Result 1300 states and 1742 transitions. [2023-12-21 02:20:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:20:49,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 136 [2023-12-21 02:20:49,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:49,491 INFO L225 Difference]: With dead ends: 1300 [2023-12-21 02:20:49,491 INFO L226 Difference]: Without dead ends: 721 [2023-12-21 02:20:49,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:20:49,492 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 32 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:49,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 396 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:20:49,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2023-12-21 02:20:49,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 624. [2023-12-21 02:20:49,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 539 states have (on average 1.269016697588126) internal successors, (684), 542 states have internal predecessors, (684), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-21 02:20:49,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 828 transitions. [2023-12-21 02:20:49,518 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 828 transitions. Word has length 136 [2023-12-21 02:20:49,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:49,518 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 828 transitions. [2023-12-21 02:20:49,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:49,518 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 828 transitions. [2023-12-21 02:20:49,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 02:20:49,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:49,520 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:49,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:49,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:49,727 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:49,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:49,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1341363493, now seen corresponding path program 1 times [2023-12-21 02:20:49,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:49,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279546563] [2023-12-21 02:20:49,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:49,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:49,744 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:49,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936383968] [2023-12-21 02:20:49,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:49,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:49,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:49,749 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:49,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-21 02:20:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:49,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 02:20:49,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:49,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:49,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 18 [2023-12-21 02:20:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:49,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:49,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:49,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279546563] [2023-12-21 02:20:49,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:49,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936383968] [2023-12-21 02:20:49,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936383968] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:49,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:49,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:20:49,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230976837] [2023-12-21 02:20:49,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:49,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:20:49,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:50,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:20:50,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:20:50,000 INFO L87 Difference]: Start difference. First operand 624 states and 828 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:50,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:50,279 INFO L93 Difference]: Finished difference Result 1589 states and 2061 transitions. [2023-12-21 02:20:50,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:20:50,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 136 [2023-12-21 02:20:50,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:50,283 INFO L225 Difference]: With dead ends: 1589 [2023-12-21 02:20:50,283 INFO L226 Difference]: Without dead ends: 970 [2023-12-21 02:20:50,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:20:50,284 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 70 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:50,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 530 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:20:50,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2023-12-21 02:20:50,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 940. [2023-12-21 02:20:50,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 805 states have (on average 1.208695652173913) internal successors, (973), 814 states have internal predecessors, (973), 110 states have call successors, (110), 24 states have call predecessors, (110), 24 states have return successors, (110), 101 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-21 02:20:50,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1193 transitions. [2023-12-21 02:20:50,323 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1193 transitions. Word has length 136 [2023-12-21 02:20:50,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:50,323 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1193 transitions. [2023-12-21 02:20:50,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:50,324 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1193 transitions. [2023-12-21 02:20:50,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-21 02:20:50,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:50,325 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:50,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:50,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:50,532 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:50,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:50,532 INFO L85 PathProgramCache]: Analyzing trace with hash 87190288, now seen corresponding path program 1 times [2023-12-21 02:20:50,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:50,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73323142] [2023-12-21 02:20:50,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:50,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:50,552 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:50,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735031867] [2023-12-21 02:20:50,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:50,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:50,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:50,554 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:50,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-21 02:20:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:50,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 02:20:50,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:50,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:50,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:50,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73323142] [2023-12-21 02:20:50,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:50,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735031867] [2023-12-21 02:20:50,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735031867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:50,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:50,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 02:20:50,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127448778] [2023-12-21 02:20:50,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:50,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 02:20:50,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:50,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 02:20:50,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 02:20:50,783 INFO L87 Difference]: Start difference. First operand 940 states and 1193 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:50,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:50,823 INFO L93 Difference]: Finished difference Result 1863 states and 2361 transitions. [2023-12-21 02:20:50,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 02:20:50,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2023-12-21 02:20:50,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:50,827 INFO L225 Difference]: With dead ends: 1863 [2023-12-21 02:20:50,827 INFO L226 Difference]: Without dead ends: 928 [2023-12-21 02:20:50,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 02:20:50,829 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:50,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:20:50,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2023-12-21 02:20:50,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 928. [2023-12-21 02:20:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 793 states have (on average 1.1967213114754098) internal successors, (949), 802 states have internal predecessors, (949), 110 states have call successors, (110), 24 states have call predecessors, (110), 24 states have return successors, (110), 101 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-21 02:20:50,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1169 transitions. [2023-12-21 02:20:50,898 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1169 transitions. Word has length 137 [2023-12-21 02:20:50,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:50,898 INFO L495 AbstractCegarLoop]: Abstraction has 928 states and 1169 transitions. [2023-12-21 02:20:50,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:50,898 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1169 transitions. [2023-12-21 02:20:50,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-21 02:20:50,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:50,900 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:50,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:51,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:51,108 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:51,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:51,108 INFO L85 PathProgramCache]: Analyzing trace with hash -819727144, now seen corresponding path program 1 times [2023-12-21 02:20:51,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:51,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842272295] [2023-12-21 02:20:51,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:51,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:51,129 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:51,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903239882] [2023-12-21 02:20:51,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:51,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:51,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:51,130 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:51,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-21 02:20:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:51,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-21 02:20:51,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:51,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-21 02:20:51,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:51,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2023-12-21 02:20:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-21 02:20:51,709 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:20:51,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:51,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842272295] [2023-12-21 02:20:51,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:51,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903239882] [2023-12-21 02:20:51,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903239882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:20:51,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:20:51,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:20:51,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089363419] [2023-12-21 02:20:51,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:20:51,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:20:51,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:51,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:20:51,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:20:51,711 INFO L87 Difference]: Start difference. First operand 928 states and 1169 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:52,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:52,178 INFO L93 Difference]: Finished difference Result 996 states and 1250 transitions. [2023-12-21 02:20:52,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 02:20:52,179 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2023-12-21 02:20:52,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:52,182 INFO L225 Difference]: With dead ends: 996 [2023-12-21 02:20:52,182 INFO L226 Difference]: Without dead ends: 994 [2023-12-21 02:20:52,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2023-12-21 02:20:52,183 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 249 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:52,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 883 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:20:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2023-12-21 02:20:52,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 952. [2023-12-21 02:20:52,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 817 states have (on average 1.1872705018359853) internal successors, (970), 826 states have internal predecessors, (970), 110 states have call successors, (110), 24 states have call predecessors, (110), 24 states have return successors, (110), 101 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-21 02:20:52,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1190 transitions. [2023-12-21 02:20:52,220 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1190 transitions. Word has length 137 [2023-12-21 02:20:52,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:52,221 INFO L495 AbstractCegarLoop]: Abstraction has 952 states and 1190 transitions. [2023-12-21 02:20:52,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-21 02:20:52,221 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1190 transitions. [2023-12-21 02:20:52,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-21 02:20:52,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:52,222 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:52,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:52,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:52,436 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:52,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:52,437 INFO L85 PathProgramCache]: Analyzing trace with hash -544967530, now seen corresponding path program 1 times [2023-12-21 02:20:52,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:52,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295476753] [2023-12-21 02:20:52,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:52,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:52,465 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:52,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496320858] [2023-12-21 02:20:52,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:52,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:52,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:52,468 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:52,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-21 02:20:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:20:53,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 87 conjunts are in the unsatisfiable core [2023-12-21 02:20:53,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:20:53,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:53,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 65 treesize of output 64 [2023-12-21 02:20:53,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:53,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 58 treesize of output 54 [2023-12-21 02:20:53,495 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:53,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 61 treesize of output 57 [2023-12-21 02:20:53,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2023-12-21 02:20:53,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2023-12-21 02:20:53,957 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:53,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 54 [2023-12-21 02:20:54,060 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:54,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 54 [2023-12-21 02:20:54,162 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:54,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 54 [2023-12-21 02:20:54,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:54,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 54 [2023-12-21 02:20:54,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 02:20:54,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 54 treesize of output 61 [2023-12-21 02:20:54,578 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 7 proven. 339 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2023-12-21 02:20:54,578 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:20:55,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:20:55,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295476753] [2023-12-21 02:20:55,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:20:55,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496320858] [2023-12-21 02:20:55,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496320858] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 02:20:55,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:20:55,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-12-21 02:20:55,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18213742] [2023-12-21 02:20:55,780 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-21 02:20:55,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-21 02:20:55,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:20:55,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-21 02:20:55,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1181, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 02:20:55,782 INFO L87 Difference]: Start difference. First operand 952 states and 1190 transitions. Second operand has 20 states, 18 states have (on average 4.611111111111111) internal successors, (83), 17 states have internal predecessors, (83), 7 states have call successors, (15), 6 states have call predecessors, (15), 7 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2023-12-21 02:20:56,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:20:56,922 INFO L93 Difference]: Finished difference Result 2167 states and 2695 transitions. [2023-12-21 02:20:56,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-21 02:20:56,923 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 4.611111111111111) internal successors, (83), 17 states have internal predecessors, (83), 7 states have call successors, (15), 6 states have call predecessors, (15), 7 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) Word has length 137 [2023-12-21 02:20:56,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:20:56,926 INFO L225 Difference]: With dead ends: 2167 [2023-12-21 02:20:56,926 INFO L226 Difference]: Without dead ends: 1180 [2023-12-21 02:20:56,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=702, Invalid=2160, Unknown=0, NotChecked=0, Total=2862 [2023-12-21 02:20:56,929 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 115 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 02:20:56,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 928 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 02:20:56,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2023-12-21 02:20:56,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1142. [2023-12-21 02:20:56,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 982 states have (on average 1.1883910386965377) internal successors, (1167), 992 states have internal predecessors, (1167), 127 states have call successors, (127), 32 states have call predecessors, (127), 32 states have return successors, (127), 117 states have call predecessors, (127), 127 states have call successors, (127) [2023-12-21 02:20:56,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1421 transitions. [2023-12-21 02:20:56,976 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1421 transitions. Word has length 137 [2023-12-21 02:20:56,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:20:56,976 INFO L495 AbstractCegarLoop]: Abstraction has 1142 states and 1421 transitions. [2023-12-21 02:20:56,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 4.611111111111111) internal successors, (83), 17 states have internal predecessors, (83), 7 states have call successors, (15), 6 states have call predecessors, (15), 7 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2023-12-21 02:20:56,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1421 transitions. [2023-12-21 02:20:56,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-21 02:20:56,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:20:56,978 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:56,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:57,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:57,186 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:20:57,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:20:57,187 INFO L85 PathProgramCache]: Analyzing trace with hash -210087398, now seen corresponding path program 1 times [2023-12-21 02:20:57,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:20:57,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251026328] [2023-12-21 02:20:57,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:57,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:20:57,224 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:20:57,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [471305394] [2023-12-21 02:20:57,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:20:57,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:20:57,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:20:57,225 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:20:57,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-21 02:20:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-21 02:20:57,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-21 02:20:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-21 02:20:57,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-21 02:20:57,998 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-21 02:20:57,999 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 02:20:58,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-21 02:20:58,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-12-21 02:20:58,211 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:20:58,213 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 02:20:58,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 02:20:58 BoogieIcfgContainer [2023-12-21 02:20:58,258 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 02:20:58,259 INFO L158 Benchmark]: Toolchain (without parser) took 24034.64ms. Allocated memory was 194.0MB in the beginning and 525.3MB in the end (delta: 331.4MB). Free memory was 140.9MB in the beginning and 442.0MB in the end (delta: -301.1MB). Peak memory consumption was 30.7MB. Max. memory is 8.0GB. [2023-12-21 02:20:58,259 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 194.0MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 02:20:58,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.70ms. Allocated memory is still 194.0MB. Free memory was 140.7MB in the beginning and 124.7MB in the end (delta: 15.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-21 02:20:58,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.81ms. Allocated memory is still 194.0MB. Free memory was 124.7MB in the beginning and 120.9MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 02:20:58,259 INFO L158 Benchmark]: Boogie Preprocessor took 81.89ms. Allocated memory is still 194.0MB. Free memory was 120.9MB in the beginning and 116.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 02:20:58,259 INFO L158 Benchmark]: RCFGBuilder took 575.51ms. Allocated memory is still 194.0MB. Free memory was 116.1MB in the beginning and 134.6MB in the end (delta: -18.4MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. [2023-12-21 02:20:58,259 INFO L158 Benchmark]: TraceAbstraction took 23044.48ms. Allocated memory was 194.0MB in the beginning and 525.3MB in the end (delta: 331.4MB). Free memory was 134.0MB in the beginning and 442.0MB in the end (delta: -308.0MB). Peak memory consumption was 22.9MB. Max. memory is 8.0GB. [2023-12-21 02:20:58,260 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 194.0MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 282.70ms. Allocated memory is still 194.0MB. Free memory was 140.7MB in the beginning and 124.7MB in the end (delta: 15.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.81ms. Allocated memory is still 194.0MB. Free memory was 124.7MB in the beginning and 120.9MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 81.89ms. Allocated memory is still 194.0MB. Free memory was 120.9MB in the beginning and 116.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 575.51ms. Allocated memory is still 194.0MB. Free memory was 116.1MB in the beginning and 134.6MB in the end (delta: -18.4MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. * TraceAbstraction took 23044.48ms. Allocated memory was 194.0MB in the beginning and 525.3MB in the end (delta: 331.4MB). Free memory was 134.0MB in the beginning and 442.0MB in the end (delta: -308.0MB). Peak memory consumption was 22.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 106. Possible FailurePath: [L37] unsigned char isInitial = 0; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 25, 1, 16, 16, 4, 2, 64, 0, 16, 128.4, 50.2, 3.8, 25.1 }; [L110] isInitial = 1 [L111] FCALL initially() [L112] COND TRUE 1 [L113] FCALL updateLastVariables() [L114] CALL updateVariables() [L78] WrapperStruct00.var_1_2 = __VERIFIER_nondet_uchar() [L79] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L79] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L79] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L80] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L80] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L80] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L81] WrapperStruct00.var_1_6 = __VERIFIER_nondet_ushort() [L82] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L82] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L82] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L83] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L83] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 65535) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L83] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 65535) VAL [WrapperStruct00={4:0}, isInitial=1] [L84] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L84] CALL assume_abort_if_not(WrapperStruct00.var_1_6 != 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L84] RET assume_abort_if_not(WrapperStruct00.var_1_6 != 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L85] WrapperStruct00.var_1_7 = __VERIFIER_nondet_char() [L86] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L86] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= -127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L86] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= -127) VAL [WrapperStruct00={4:0}, isInitial=1] [L87] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L87] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L87] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1] [L88] WrapperStruct00.var_1_9 = __VERIFIER_nondet_char() [L89] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 63) VAL [WrapperStruct00={4:0}, isInitial=1] [L90] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1] [L91] WrapperStruct00.var_1_10 = __VERIFIER_nondet_char() [L92] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L93] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 64) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 64) VAL [WrapperStruct00={4:0}, isInitial=1] [L94] WrapperStruct00.var_1_12 = __VERIFIER_nondet_double() [L95] EXPR WrapperStruct00.var_1_12 [L95] EXPR WrapperStruct00.var_1_12 >= 0.0F && WrapperStruct00.var_1_12 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L95] EXPR WrapperStruct00.var_1_12 >= 0.0F && WrapperStruct00.var_1_12 <= -1.0e-20F [L95] EXPR WrapperStruct00.var_1_12 [L95] EXPR WrapperStruct00.var_1_12 >= 0.0F && WrapperStruct00.var_1_12 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L95] EXPR (WrapperStruct00.var_1_12 >= 0.0F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L95] EXPR (WrapperStruct00.var_1_12 >= 0.0F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L95] CALL assume_abort_if_not((WrapperStruct00.var_1_12 >= 0.0F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L95] RET assume_abort_if_not((WrapperStruct00.var_1_12 >= 0.0F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L96] WrapperStruct00.var_1_13 = __VERIFIER_nondet_double() [L97] EXPR WrapperStruct00.var_1_13 [L97] EXPR WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L97] EXPR WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F [L97] EXPR WrapperStruct00.var_1_13 [L97] EXPR WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L97] EXPR (WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L97] EXPR (WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L97] CALL assume_abort_if_not((WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L97] RET assume_abort_if_not((WrapperStruct00.var_1_13 >= 0.0F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L98] WrapperStruct00.var_1_14 = __VERIFIER_nondet_double() [L99] EXPR WrapperStruct00.var_1_14 [L99] EXPR WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L99] EXPR WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F [L99] EXPR WrapperStruct00.var_1_14 [L99] EXPR WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L99] EXPR (WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] EXPR (WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] CALL assume_abort_if_not((WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L99] RET assume_abort_if_not((WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L100] WrapperStruct00.var_1_15 = __VERIFIER_nondet_double() [L101] EXPR WrapperStruct00.var_1_15 [L101] EXPR WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L101] EXPR WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F [L101] EXPR WrapperStruct00.var_1_15 [L101] EXPR WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L101] EXPR (WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L101] EXPR (WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L101] CALL assume_abort_if_not((WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L101] RET assume_abort_if_not((WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L114] RET updateVariables() [L115] CALL step() [L56] EXPR WrapperStruct00.var_1_12 [L56] EXPR WrapperStruct00.var_1_13 [L56] EXPR WrapperStruct00.var_1_14 [L56] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L56] EXPR ((1.875) > (WrapperStruct00.var_1_15)) ? (1.875) : (WrapperStruct00.var_1_15) [L56] EXPR ((1.875) > (WrapperStruct00.var_1_15)) ? (1.875) : (WrapperStruct00.var_1_15) VAL [WrapperStruct00={4:0}, isInitial=1] [L56] COND FALSE !(((WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14) <= (256.625 * ((((1.875) > (WrapperStruct00.var_1_15)) ? (1.875) : (WrapperStruct00.var_1_15))))) [L59] WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L59] COND FALSE !(WrapperStruct00.var_1_2) [L62] EXPR WrapperStruct00.var_1_1 [L62] (WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6)) VAL [WrapperStruct00={4:0}, isInitial=1] [L62] (WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6)) [L62] EXPR WrapperStruct00.var_1_11 [L62] EXPR WrapperStruct00.var_1_6 [L62] (WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6)) VAL [WrapperStruct00={4:0}, isInitial=1] [L62] COND FALSE !((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) [L65] WrapperStruct00.var_1_5 = 5 VAL [WrapperStruct00={4:0}, isInitial=1] [L67] EXPR WrapperStruct00.var_1_11 [L67] unsigned char stepLocal_1 = WrapperStruct00.var_1_11; [L68] EXPR WrapperStruct00.var_1_2 [L68] unsigned char stepLocal_0 = WrapperStruct00.var_1_2; [L69] stepLocal_0 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11) VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=0, stepLocal_1=16] [L69] stepLocal_0 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11) [L69] EXPR WrapperStruct00.var_1_11 [L69] EXPR WrapperStruct00.var_1_11 [L69] stepLocal_0 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11) VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=0, stepLocal_1=16] [L69] COND TRUE stepLocal_0 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11) [L70] EXPR WrapperStruct00.var_1_9 [L70] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L70] COND FALSE !(stepLocal_1 < ((WrapperStruct00.var_1_9 - WrapperStruct00.var_1_10) - 16)) [L115] RET step() [L116] CALL, EXPR property() [L106] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))) : 1 [L106] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))) : 1) && (((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_5 == ((signed char) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_5 == ((signed char) 5))) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))) : 1) && (((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_5 == ((signed char) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_5 == ((signed char) 5))) [L106] EXPR WrapperStruct00.var_1_1 [L106] EXPR (WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6)) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR (WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6)) [L106] EXPR WrapperStruct00.var_1_11 [L106] EXPR WrapperStruct00.var_1_6 [L106] EXPR (WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6)) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR ((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_5 == ((signed char) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_5 == ((signed char) 5)) [L106] EXPR WrapperStruct00.var_1_5 [L106] EXPR ((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_5 == ((signed char) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_5 == ((signed char) 5)) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))) : 1) && (((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_5 == ((signed char) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_5 == ((signed char) 5))) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))) : 1) && (((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_5 == ((signed char) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_5 == ((signed char) 5)))) && ((WrapperStruct00.var_1_2 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11)) ? ((WrapperStruct00.var_1_11 < ((WrapperStruct00.var_1_9 - WrapperStruct00.var_1_10) - 16)) ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_10) > (32)) ? (WrapperStruct00.var_1_10) : (32))))) : 1) : (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_11)))))) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))) : 1) && (((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_5 == ((signed char) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_5 == ((signed char) 5)))) && ((WrapperStruct00.var_1_2 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11)) ? ((WrapperStruct00.var_1_11 < ((WrapperStruct00.var_1_9 - WrapperStruct00.var_1_10) - 16)) ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_10) > (32)) ? (WrapperStruct00.var_1_10) : (32))))) : 1) : (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_11)))))) [L106] EXPR WrapperStruct00.var_1_2 [L106] EXPR WrapperStruct00.var_1_2 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR WrapperStruct00.var_1_2 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11) [L106] EXPR WrapperStruct00.var_1_11 [L106] EXPR WrapperStruct00.var_1_11 [L106] EXPR WrapperStruct00.var_1_2 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR (WrapperStruct00.var_1_2 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11)) ? ((WrapperStruct00.var_1_11 < ((WrapperStruct00.var_1_9 - WrapperStruct00.var_1_10) - 16)) ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_10) > (32)) ? (WrapperStruct00.var_1_10) : (32))))) : 1) : (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_11))))) [L106] EXPR WrapperStruct00.var_1_11 [L106] EXPR WrapperStruct00.var_1_9 [L106] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR (WrapperStruct00.var_1_11 < ((WrapperStruct00.var_1_9 - WrapperStruct00.var_1_10) - 16)) ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_10) > (32)) ? (WrapperStruct00.var_1_10) : (32))))) : 1 [L106] EXPR (WrapperStruct00.var_1_11 < ((WrapperStruct00.var_1_9 - WrapperStruct00.var_1_10) - 16)) ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_10) > (32)) ? (WrapperStruct00.var_1_10) : (32))))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR (WrapperStruct00.var_1_2 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11)) ? ((WrapperStruct00.var_1_11 < ((WrapperStruct00.var_1_9 - WrapperStruct00.var_1_10) - 16)) ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_10) > (32)) ? (WrapperStruct00.var_1_10) : (32))))) : 1) : (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_11))))) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))) : 1) && (((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_5 == ((signed char) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_5 == ((signed char) 5)))) && ((WrapperStruct00.var_1_2 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11)) ? ((WrapperStruct00.var_1_11 < ((WrapperStruct00.var_1_9 - WrapperStruct00.var_1_10) - 16)) ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_10) > (32)) ? (WrapperStruct00.var_1_10) : (32))))) : 1) : (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_11)))))) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))) : 1) && (((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_5 == ((signed char) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_5 == ((signed char) 5)))) && ((WrapperStruct00.var_1_2 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11)) ? ((WrapperStruct00.var_1_11 < ((WrapperStruct00.var_1_9 - WrapperStruct00.var_1_10) - 16)) ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_10) > (32)) ? (WrapperStruct00.var_1_10) : (32))))) : 1) : (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_11))))))) && ((((WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14) <= (256.625 * ((((1.875) > (WrapperStruct00.var_1_15)) ? (1.875) : (WrapperStruct00.var_1_15))))) ? (WrapperStruct00.var_1_11 == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))) : 1) && (((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_5 == ((signed char) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_5 == ((signed char) 5)))) && ((WrapperStruct00.var_1_2 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11)) ? ((WrapperStruct00.var_1_11 < ((WrapperStruct00.var_1_9 - WrapperStruct00.var_1_10) - 16)) ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_10) > (32)) ? (WrapperStruct00.var_1_10) : (32))))) : 1) : (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_11))))))) && ((((WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14) <= (256.625 * ((((1.875) > (WrapperStruct00.var_1_15)) ? (1.875) : (WrapperStruct00.var_1_15))))) ? (WrapperStruct00.var_1_11 == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) [L106] EXPR WrapperStruct00.var_1_12 [L106] EXPR WrapperStruct00.var_1_13 [L106] EXPR WrapperStruct00.var_1_14 [L106] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR ((1.875) > (WrapperStruct00.var_1_15)) ? (1.875) : (WrapperStruct00.var_1_15) [L106] EXPR ((1.875) > (WrapperStruct00.var_1_15)) ? (1.875) : (WrapperStruct00.var_1_15) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR (((WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14) <= (256.625 * ((((1.875) > (WrapperStruct00.var_1_15)) ? (1.875) : (WrapperStruct00.var_1_15))))) ? (WrapperStruct00.var_1_11 == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1 [L106] EXPR WrapperStruct00.var_1_11 [L106] EXPR (((WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14) <= (256.625 * ((((1.875) > (WrapperStruct00.var_1_15)) ? (1.875) : (WrapperStruct00.var_1_15))))) ? (WrapperStruct00.var_1_11 == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1] [L106] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))) : 1) && (((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_5 == ((signed char) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_5 == ((signed char) 5)))) && ((WrapperStruct00.var_1_2 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11)) ? ((WrapperStruct00.var_1_11 < ((WrapperStruct00.var_1_9 - WrapperStruct00.var_1_10) - 16)) ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_10) > (32)) ? (WrapperStruct00.var_1_10) : (32))))) : 1) : (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_11))))))) && ((((WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14) <= (256.625 * ((((1.875) > (WrapperStruct00.var_1_15)) ? (1.875) : (WrapperStruct00.var_1_15))))) ? (WrapperStruct00.var_1_11 == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L106-L107] return (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))) : 1) && (((WrapperStruct00.var_1_1 == 16) || (WrapperStruct00.var_1_11 < (10 / WrapperStruct00.var_1_6))) ? (WrapperStruct00.var_1_5 == ((signed char) WrapperStruct00.var_1_7)) : (WrapperStruct00.var_1_5 == ((signed char) 5)))) && ((WrapperStruct00.var_1_2 || (WrapperStruct00.var_1_11 >= WrapperStruct00.var_1_11)) ? ((WrapperStruct00.var_1_11 < ((WrapperStruct00.var_1_9 - WrapperStruct00.var_1_10) - 16)) ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_10) > (32)) ? (WrapperStruct00.var_1_10) : (32))))) : 1) : (WrapperStruct00.var_1_8 == ((unsigned short int) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_11))))))) && ((((WrapperStruct00.var_1_12 - WrapperStruct00.var_1_13) + WrapperStruct00.var_1_14) <= (256.625 * ((((1.875) > (WrapperStruct00.var_1_15)) ? (1.875) : (WrapperStruct00.var_1_15))))) ? (WrapperStruct00.var_1_11 == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) ; [L116] RET, EXPR property() [L116] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.0s, OverallIterations: 24, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3124 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3122 mSDsluCounter, 12235 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8849 mSDsCounter, 263 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7559 IncrementalHoareTripleChecker+Invalid, 7822 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 263 mSolverCounterUnsat, 3386 mSDtfsCounter, 7559 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2970 GetRequests, 2780 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 883 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1142occurred in iteration=23, InterpolantAutomatonStates: 188, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 23 MinimizatonAttempts, 1795 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 3149 NumberOfCodeBlocks, 3149 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 3118 ConstructedInterpolants, 0 QuantifiedInterpolants, 12131 SizeOfPredicates, 126 NumberOfNonLiveVariables, 8170 ConjunctsInSsa, 302 ConjunctsInUnsatCore, 24 InterpolantComputations, 22 PerfectInterpolantSequences, 9699/10080 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-21 02:20:58,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...